#VU122450 Cross-site scripting in Roundcube - CVE-2026-26079

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU122450

#VU122450 Cross-site scripting in Roundcube - CVE-2026-26079

Published: February 8, 2026 / Updated: February 12, 2026


Vulnerability identifier: #VU122450
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green
CVE-ID: CVE-2026-26079
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Roundcube
Software vendor:
Roundcube

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when handling CSS files. A remote attacker can send a specially crafted email messages and perform CSS injection attacks.


Remediation

Install updates from vendor's website.

External links